Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than tu cao snippets" » "thanh tu cao snippets", "thang tu cao snippets", "phan tu cao snippets", "than cu cao snippets", "than tu cac snippets", "than vu cao snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("than tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than tu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than tu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.